intransitive v. To keep a constant distance apart. Used of a pair of wheels.

intransitive v. To be in alignment.

intransitive v. To follow the undulations in the groove of a phonograph record. Used of a needle.

intransitive v. To move across magnetic heads. Used of magnetic tape.

track down To pursue until found or captured: "When, like a running grave, time tracks you down” ( Dylan Thomas).

idiom in (one's) tracks Exactly where one is standing: stopped him right in his tracks.

from Wiktionary, Creative Commons Attribution/Share-Alike License

n. A mark left by something that has passed along; as, the track, or wake, of a ship; the track of a meteor; the track of a sled or a wheel.

n. A mark or impression left by the foot, either of man or beast; trace; vestige; footprint.

n. The entire lower surface of the foot; said of birds, etc.

n. A road; a beaten path.

n. Course; way; as, the track of a comet.

n. A path or course laid out for a race, for exercise, etc.

n. The permanent way; the rails.

n. A tract or area, as of land.

n. The distance between two opposite wheels on a same axletree (also track width)

n. Short for caterpillar track.

n. The pitch.

n. Sound stored on a record.

n. The physical track on a record.

n. A song or other relatively short piece of music, on a record, separated from others by a short silence

n. Circular (never-ending) data storage unit on a side of magnetic or optical disk, divided into sectors.

n. The racing events of track and field; track and field in general.

n. A session talk on a conference.

v. To observe the (measured) state of an object over time

v. To monitor the movement of a person or object.

v. To discover the location of a person or object (usually in the form track down).

v. To follow the tracks of.

v. To leave in the form of tracks.

from the GNU version of the Collaborative International Dictionary of English

n. A mark left by something that has passed along

n. A mark or impression left by the foot, either of man or beast; trace; vestige; footprint.

n. The entire lower surface of the foot; -- said of birds, etc.

n. A road; a beaten path.

n. Course; way.

n. A path or course laid out for a race, for exercise, etc.

n. The permanent way; the rails.

n. A tract or area, as of land.

transitive v. To follow the tracks or traces of; to pursue by following the marks of the feet; to trace; to trail.

transitive v. To draw along continuously, as a vessel, by a line, men or animals on shore being the motive power; to tow.

from The Century Dictionary and Cyclopedia

To follow a track, or to proceed along a certain definite route.

To tow.

To draw; specifically, to draw or tow (a boat) by a line reaching from the vessel to the bank or shore.

To draw out; protract; delay.

To follow up the tracks of; follow by the tracks or traces left by that which is followed; trace; trail.

To ascertain by means of existing traces or remains; trace.

To trace, follow, or mark out plainly.

To make tracks over; traverse: as, to track the desert.

To make marks upon, as with wet or muddy feet.

n. A feature; lineament.

n. A mark left by something that has passed along: as, the track of a ship (a wake): the track of a wagon (a rut).

n. A mark or an impression left by the foot, whether of man or beast; a footprint; specifically, in paleontology, an ichnite or ichnolite; a fossil footprint, or cast of an extinct animal's foot. Compare trace, 1, and trail, 2.

n. A road; a path; a trail.

n. A course followed; a way of going or proceeding: as, the track of a comet.

n. The course or path laid out for horse-, foot-, bicycle-, or other races: as, a cinder track; a track of six laps to the mile.

n. The two continuous lines of rails on which railway-cars run, forming, together with the ties, ballast, switches, etc., an essential part of the permanent way: as, a single track; a double track; to cross the track. See cut under switch.

Examples

If I was keeping track of the 50 Book Challenge thing and I'm well past 100, or 200 if you count YA and graphic novels, which is why I'm not really keeping track*, Grafton alone would have accounted for getting me nineteen books along that path this year.

LOWDOWN: Country outlaw Jamey Johnson will release two albums in 2010: A “white album,” due first, will focus on upbeat material, including the hard-rocking singalong “California Riots” and the title track, which is sung from the perspective of old guitars hanging on a wall.

Only two songs on this departure album bare any pop sounds at all; the bouncy 'All This Time', wisely chosen as the first single, and the title track, which is led by the big drum sound of Manu Katche and the light guitar riffs of Dominic Miller.